Improper access control in OpenID Connect / OAuth client - CVE-2026-3531

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Main Vulnerability Database Vulnerabilities #VU123566

Improper access control in OpenID Connect / OAuth client - CVE-2026-3531

Published: March 5, 2026


Vulnerability identifier: #VU123566
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-3531
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: pfrilling
Affected software:
OpenID Connect / OAuth client

Detailed vulnerability description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions. A remote user can bypass implemented security restrictions and maintain their session at the Identity Provider.


How to mitigate CVE-2026-3531

Install updates from vendor's website.

Sources